The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 2026
Filed:
Mar. 23, 2023
Tokyo Ohka Kogyo Co., Ltd., Kanagawa, JP;
Yuehchun Liao, Kanagawa, JP;
Kenichi Yamauchi, Kanagawa, JP;
TOKYO OHKA KOGYO CO., LTD., Kanagawa, JP;
Abstract
A production method of niobium(V) oxide nanocrystals is provided which is capable of obtaining niobium(V) oxide nanocrystals having a size of less than 100 nm in a state where an amorphous phase is less likely to be generated. The production method of niobium(V) oxide nanocrystals according to the present invention includes heating a mixture containing a pentaalkoxyniobium(V), water, and a water-soluble solvent to 255° C. or higher to allow a hydrothermal reaction to proceed, wherein alkoxy groups in the pentaalkoxyniobium(V) are independently an alkoxy group having 2 to 5 carbon atoms. A molar ratio between water and pentaalkoxyniobium(V) is preferably 0.20 or more. The hydrothermal reaction is preferably allowed to proceed at a pressure of 400 psi or more.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile